World Bulletin / News Desk
US doctors fear an outbreak in California which has affected up to 20 people carries similarities to polio.
The American Academy of Neurology has raised concerns over incidents of sudden paralysis after patients suffered from a nerve-attacking illness.
Currently only Afghanistan, Nigeria and Pakistan are officially struggling with a polio endemic, but recent outbreaks in Syria also threaten to spread across the wider region.
Dr Emanuelle Waubant, a neurologist at the University of California, San Francisco, said that it may have spread of Asia as only California was affected.
He alo told the BBC that although he doesn't fear an epidemic, he was worried that patients showed no improvement despite aggressive treatment.
Paris being hit by the longest and most intense winter pollution peak in 10 years, according French air quality watchdog
A third of the world's polar bears will disappear in next 40 years
About 20 percent of Canadians have little or no coverage
Students in a private Australian high school have recreated a malaria drug in the school laboratory
2 studies claim psilocybin, outlawed by federal government, could significantly improve patients’ mood
Global crises changing nature of hotel industry, expert warns Mediterranean Week of Economic Leaders conference
Fighting climate change means different things in different cities, as this snapshot illustrates:
The Paris deal, now in force, calls for capping global warming at two degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels, and at 1.5 C (2.7 F) if possible.
British MPs voted in February to allow the creation of in-vitro fertilisation (IVF) babies with DNA from three people.
The H5N6 virus was first confirmed on November 18 at a farm in central South Korea and it has since spread to farms around the country, with the total number of cases now standing at 46.
It is one of the biggest clinical trials involving the disease ever undertaken and has revived hopes in the scientific community of a breakthrough in the battle against AIDS.
Nuclear energy: who's advancing and who's retreating
A killer bird flu that is sweeping Europe has forced Sweden to cull more than 200,000 chickens
Study finds blood of old mice makes young mice feeble; scientists hope to discover more in human trials soon
Drug overdoses are now killing more Americans than car crashes, putting the sheer scale of the crisis into perspective.
The idea of clean air, potable water and healthy food free from heavy metals, pesticides, and other pollutants as a human right emerged in the mid-1970s.